GB277684A - Improvements relating to unidirectional electric current-carrying devices - Google Patents
Improvements relating to unidirectional electric current-carrying devicesInfo
- Publication number
- GB277684A GB277684A GB24443/27A GB2444327A GB277684A GB 277684 A GB277684 A GB 277684A GB 24443/27 A GB24443/27 A GB 24443/27A GB 2444327 A GB2444327 A GB 2444327A GB 277684 A GB277684 A GB 277684A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- oxide
- layer
- blanks
- medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 5
- 229910052802 copper Inorganic materials 0.000 abstract 5
- 239000010949 copper Substances 0.000 abstract 5
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 2
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(i) oxide Chemical compound [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 abstract 2
- 229960004643 cupric oxide Drugs 0.000 abstract 2
- 238000010791 quenching Methods 0.000 abstract 2
- 230000000171 quenching effect Effects 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 abstract 1
- 229940112669 cuprous oxide Drugs 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000002480 mineral oil Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000005488 sandblasting Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 235000015112 vegetable and seed oil Nutrition 0.000 abstract 1
- 239000008158 vegetable oil Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/16—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising cuprous oxide or cuprous iodide
- H01L21/161—Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
- H01L21/165—Reduction of the copper oxide, treatment of the oxide layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02565—Oxide semiconducting materials not being Group 12/16 materials, e.g. ternary compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02614—Transformation of metal, e.g. oxidation, nitridation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Chemical Treatment Of Metals (AREA)
- Powder Metallurgy (AREA)
Abstract
277,684. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Martin, G. F., and Westinghouse Electric & Manufacturing Co.). Sept. 16, 1926, [Convention date]. Drawings to Specification. By solid unidirectional conducting devices; condensers.-In an asymmetric conducting device of the copper-copper oxide type, a neutral contact with the oxide coating on the copper elements is produced by reducing a portion of the oxide coating to form a conducting element of reduced copper. The copper blanks are heated in an oxidizing atmosphere to temperatures from 500 to 1000‹ C. to produce a layer of cuprous oxide covered by a layer of cupric oxide thereon, and after cooling to a temperature dependent on the quenching medium to be employed, are quenched in a medium which decomposes to form a reducing agent which converts the cupric oxide layer to metallic copper. Mineral or vegetable oils or mixtures thereof, gasoline, and alcohol are given as examples of quenching media. The coatings are then removed, as by sand blasting, from one side and the peripheries of the copper blanks which are then assembled on an insulated bolt to form a rectifier. Two rectifiers may be connected in opposition to form a condenser.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US135899A US1901563A (en) | 1926-09-16 | 1926-09-16 | Copper oxide rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB277684A true GB277684A (en) | 1927-10-27 |
Family
ID=22470267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24443/27A Expired GB277684A (en) | 1926-09-16 | 1927-09-16 | Improvements relating to unidirectional electric current-carrying devices |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US1901563A (en) |
| BE (1) | BE344525A (en) |
| DE (1) | DE533446C (en) |
| FR (1) | FR640946A (en) |
| GB (1) | GB277684A (en) |
| NL (1) | NL21710C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2699522A (en) * | 1952-01-04 | 1955-01-11 | Robert G Breckenridge | Titanium dioxide rectifier |
| DE1252035B (en) * | 1957-08-16 | 1967-10-12 |
-
0
- NL NL21710D patent/NL21710C/xx active
- BE BE344525D patent/BE344525A/xx unknown
-
1926
- 1926-09-16 US US135899A patent/US1901563A/en not_active Expired - Lifetime
-
1927
- 1927-02-27 DE DES78574D patent/DE533446C/en not_active Expired
- 1927-09-07 FR FR640946D patent/FR640946A/en not_active Expired
- 1927-09-16 GB GB24443/27A patent/GB277684A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE344525A (en) | 1900-01-01 |
| US1901563A (en) | 1933-03-14 |
| FR640946A (en) | 1928-07-24 |
| NL21710C (en) | 1900-01-01 |
| DE533446C (en) | 1931-09-16 |
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